Investigation of Phosphate Mining Waste for Construction Materials
Publication: Journal of Materials in Civil Engineering
Volume 5, Issue 2
Abstract
Phosphogypsum, a by‐product of fertilizer industry, is the subject of a series of laboratory programs to examine its engineering characteristics “as is” and when combined with Portland cement‐based mixes. Identification tests are aimed at obtaining: physical and geotechnical characteristics; strength as a function of matrix constituents, testing, and curing conditions; relationships between compression and indirect tension; static modulus; fatigue property; sulfate durability; and corrosion protection. It is found that phosphogypsum can be used as a suitable aggregate in concrete for applications such as building products and road construction. Presence of calcium sulfate does not adversely affect the long‐term properties of the cement‐based mixtures containing phosphogypsum.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 5 • Issue 2 • May 1993
Pages: 249 - 264
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Feb 24, 1992
Published online: May 1, 1993
Published in print: May 1993
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